# Spree Commerce vs Square (slim)

> Spree Commerce scores 70.4 (BB) to Square's 69.2 (B) for commerce catalogues. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/spree-commerce-vs-square.md (~2,750 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/spree-commerce-vs-square.json · canonical https://www.anchorterminal.com/compare/spree-commerce-vs-square
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Spree Commerce scores 70.4 (BB) on agent readiness against Square's 69.2 (B), and leads in 3 of 7 scored categories. Square leads on transparency & trust. Both do commerce catalogues.

- Spree Commerce: BB 70.4, rank #155 of 950 · https://www.anchorterminal.com/tools/spree-commerce.min.md
- Square: B 69.2, rank #195 of 950 · https://www.anchorterminal.com/tools/square.min.md
- Spree Commerce, good for Teams that want to own a Rails commerce backend with marketplace, B2B and multi-region functions and drive it through REST. Ahead on Reliability, 82 against 58; Agent ergonomics, 90 against 83; Payments & pricing, 55 against 40. Also Agent-ready, a grade of BB or better; Open source.
- Square, good for Agents working for a seller already on Square, on catalogue, inventory, orders, payment links and customers, online and in person. Ahead on Transparency & trust, 70 against 60. Also A hosted endpoint, with nothing to install; Runs on your own machine; No incidents deducted, where Spree Commerce loses 5 points for them.

| Category | Spree Commerce | Square |
| --- | --- | --- |
| Reliability (16%) | 82 | 58 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 87 |
| Agent ergonomics (13%) | 90 | 83 |
| Security & auth (14%) | 65 | 67 |
| Payments & pricing (10%) | 55 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 81 | 81 |
| Transparency & trust (7%) | 60 | 70 |

| Fact (where they differ) | Spree Commerce | Square |
| --- | --- | --- |
| Vendor | Vendo Connect Inc | Block, Inc. |
| Hosted endpoint | no (local only) | `https://mcp.squareup.com/mcp` |
| Transports | HTTP | HTTP, Streamable HTTP, stdio |
| Pricing | Freemium | Pay per use |
| Licence | BSD-3-Clause for the backend, MIT for the npm packages. Enterprise Edition code is under a separate commercial licence | Proprietary service under the Square Developer Terms of Service. The MCP server and the OpenAPI specification on GitHub are Apache 2.0, and the Node.js SDK is MIT |
| Tools exposed | none | 3 |
| Read-only variant documented | yes | no |
| Last release | 2026-07-28 | 2026-09-16 |
| Terms last updated | no document linked | 2026-09-10 |
| Privacy policy last updated | no document linked | 2026-09-15 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 16k stars, 1.6k npm/wk | 454k npm/wk, 72k PyPI/wk |